Frankie is the youngest sibling of Joe, Kevin, and Nick, but is the only sibling that is not part of their popular band, the Jonas Brothers. In 2016, Joe started dating Turner following a string of messages via Instagram DMs, which led to Frankie meeting the "Game of Thrones" actor.
During an interview on the "Chicks in the Office" podcast, Frankie recalled his first encounter with Turner when she joined his family on a Thanksgiving trip.
"Honestly the most starstruck I've ever been was Thanksgiving in 2016. I show up to this airport and then on the plane with my family is Sansa Stark, and I'm like, 'Uhhh,'" Frankie said. "And I twiddled my thumbs the whole flight and I just was trying to think of something to say to her and I could not. For like 24 hours, I didn't talk to Sophie 'cause I was too afraid, 'cause she was so cool."
He added: "Now she's my sister. She's still super dope."
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Frankie admitted that he was a major "Game of Thrones" fan before meeting Turner.
"I was, like, the guy who showed my family," he said. "And I was, like, a kid, I should not have been watching the show. Absolutely not. But I showed my dad, and he showed Kevin, and Kevin showed Joe. I mean, I like to obviously take credit for it, but that's probably not the way it went realistically. But I did love 'Game of Thrones' beforehand."
Frankie also said that he thinks Turner is cooler than his older brother Joe.
"Sophie is the reason that Joe's TikTok is successful," he said. "I tell him this all the time. When he calls me asking me for, like, 'Hey man, I'm trying to promote my new song, I need a TikTok idea,' I'm like, 'Dude, put Sophie in it, and then it will do great. She's so much cooler than you.'"
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